Results 21 to 30 of about 139,650 (284)

Studies on the sulfation of cellulose α-lipoate and ability of the sulfated product to stabilize colloidal suspensions of gold nanoparticles [PDF]

open access: yes, 2015
© 2015 Elsevier Ltd. A versatile method for the synthesis of cellulose α-lipoate with a low degree of substitution (DS) has been developed using N,N-dimethylacetamide (DMA)/LiCl as a solvent and N,N′-carbonyldiimidazole (CDI) as an esterification reagent.
Cheng, Fei   +4 more
core   +2 more sources

Oxidative Aromatization of Some 1,4-Dihydropyridine Derivatives Using Pyritic Ash in Eco-Sustainable Conditions

open access: yesChemistry Proceedings, 2023
Hantzsch 1,4-dihydropyridines (Hantzsch 1,4-DHP), have been utilized as starting material in organic synthesis. In addition, several 1,4-DHP based drugs (Nifedipine, Niguldipine, Amlodepine besylate) have been recognized for the treatment of ...
Juan Enrique Tacoronte Morales   +4 more
doaj   +1 more source

Unexpected = 4 + 2 Cycloaddition through Chromium Non-Heteroatom-Stabilized Alkynyl Carbene Complexes: Regioselective Access to Substituted 6-Azaindoles [PDF]

open access: yes, 2018
This research was supported by the Spanish Government MINECO/FEDER (CTQ-2016-76840-R and CTQ-2017-87372-P (AEI/FEDER, UE)) and the Principality of Asturias, Spain (GRUPIN14 ...
Funes Ardoiz, Ignacio   +3 more
core   +2 more sources

4,4″-Dichloro-4′-(2-thienyl)-2,2′:6′,2″-terpyridine

open access: yesMolbank, 2019
A new thiophene-substituted terpyridine derivative has been prepared and characterized. This ligand features a thiophene heterocycle (as an electrochemically polymerizable unit) as well as two chlorine atoms for further functionalization.
Jérôme Husson, Laurent Guyard
doaj   +1 more source

Synthesis, Molecular Docking and In Vitro Screening of Some Newly Synthesized Triazolopyridine, Pyridotriazine and Pyridine–Pyrazole Hybrid Derivatives

open access: yesMolecules, 2018
A series of novel pyridine and fused pyridine derivatives have been prepared starting from 6-(3,4-dimethylphenyl)-2-hydrazinyl-4-(thiophen-2-yl)-pyridine-3-carbonitrile 1 which on treatment with appropriate formic acid, acetic acid/acetic anhydride ...
Eman M. Flefel   +4 more
doaj   +1 more source

Computer-Assisted Design of Environmentally Friendly and Light-Stable Fluorescent Dyes for Textile Applications. [PDF]

open access: yes, 2019
Five potentially environmentally friendly and light-stable hemicyanine dyes were designed based on integrated consideration of photo, environmental, and computational chemistry as well as textile applications.
Chen, Guoqiang   +2 more
core   +1 more source

Comparative Metabolic Responses Induced by Pyridine and Imidazole in Blakeslea trispora

open access: yesFrontiers in Bioengineering and Biotechnology, 2019
Lycopene cyclase needs to be inhibited by the blockers like pyridine or imidazole in the lycopene accumulation of Blakeslea trispora. This work investigated how pyridine and imidazole impacted the basal metabolism of B.
Yang Liu   +10 more
doaj   +1 more source

Synthesis of C-5" and C-6"-modified α-GalCer analogues as iNKT-cell agonists [PDF]

open access: yes, 2015
Alpha-Galactosyl Ceramide (α-GalCer) is a prototypical synthetic ligand of invariant natural killer T (iNKT) cells. Upon presentation by the MHC class I-like molecule CD1d, this glycolipid stimulates iNKT cells to secrete a vast amount of both pro ...
ASPESLAGH, SANDRINE   +5 more
core   +1 more source

CHEMICAL PROPERTIES AND APPLICATIONS OF NITROPYRIDINES

open access: yesSiberian Journal of Life Sciences and Agriculture, 2023
Background. Pyridines are one of the most common heterocycles, the derivatives of which are widely used in pharmaceuticals, agrochemistry, and also in the production of new materials.
Evgeniya V. Ivanova   +5 more
doaj   +1 more source

An Overview of the Biological Activity of Pyrrolo[3,4-c]pyridine Derivatives

open access: yesPharmaceuticals, 2021
Pyrrolo[3,4-c]pyridine is one of the six structural isomers of the bicyclic ring system containing a pyrrole moiety fused to a pyridine nucleus. The broad spectrum of pharmacological properties of pyrrolo[3,4-c]pyridine derivatives is the main reason for
Anna Wójcicka, Aleksandra Redzicka
doaj   +1 more source

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